Global ETD Search
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Showing 1 to 4 of 4 for “"Sultam"”.
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The Design and Synthesis of β-Keto Vinyl Sultams and Macrocyclic β-Keto Vinyl Sultams: Novel Analogs of Tetramic Acids
… pathways. Specifically, sulfonamides and sultams represent two significant compound classes, which exhibit broad ranges of biological activities. Similarly, natural products possessing the tetramic acid core structural motif have emerged as a rich chemotype due to their potent and broad …
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Studies directed towards the synthesis of (-)-Ebelactone-A
… Mukaiyama aldol reaction directed by Oppolzer's sultam to establish the anti-anti stereotriad of the fragment. We modelled the coupling of this to 115 using isobutyraldehyde in place of 20 and vinyl iodide 133 in place of 115, and verified that the Nozaki-Kishi method using chromium(II) chloride …
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En-Reaktion von Nitrosoaren, Triazolindion und Singulettsauerstoff
… chiralen Tiglinsäureamiden des Oppolzer-Bornansultams untersucht und dabei hervorragende Stereoselektivitäten erzielt. Für ArNO wurde hiermit eine effiziente Methode zur enantioselektiven Synthese von alpha-Methylen-beta-aminosäurederivaten entwickelt. Es wurden folgende Ergebnisse erhalten: …
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Asymmetrische Synthese von Beta-Aminosulfonaten, Beta-Sultamen und Gamma-Sultonen
… of beta-amino-cyclohexyl sulfonates, beta-sultams and gamma-sultones has been developed. The key step of the synthesis is the Lewis acid (zinkbromide) catalyzed aza-Michael addition of the enantiopure hydrazines (S)-1-amino-2-methoxymethyl-pyrrolidine (SAMP) or …